remove duplicates from sorted array
// Java
public int removeDuplicates(int[] nums) {
if (nums.length == 0) return 0;
int i = 0;
for (int j = 1; j < nums.length; j++) {
if (nums[j] != nums[i]) {
i++;
nums[i] = nums[j];
}
}
return i + 1;
}remove duplicate from string
// Java program to create a unique string
import java.util.*;
class IndexOf {
// Function to make the string unique
public static String unique(String s)
{
String str = new String();
int len = s.length();
// loop to traverse the string and
// check for repeating chars using
// IndexOf() method in Java
for (int i = 0; i < len; i++)
{
// character at i'th index of s
char c = s.charAt(i);
// if c is present in str, it returns
// the index of c, else it returns -1
if (str.indexOf(c) < 0)
{
// adding c to str if -1 is returned
str += c;
}
}
return str;
}
// Driver code
public static void main(String[] args)
{
// Input string with repeating chars
String s = "geeksforgeeks";
System.out.println(unique(s));
}
}Copyright © 2021 Codeinu
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